<?php

class UserProfilesController extends Controller
{
	public $user_profiles;
	/**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */
	public $layout='//layouts/column3';

	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
			array('allow',  // allow all users to perform 'index' and 'view' actions
				'actions'=>array(''),
				'users'=>array('*'),
			),
			array('allow', // allow authenticated user to perform 'create' and 'update' actions
				'actions'=>array('update','avatar','view'),
				'users'=>array('@'),
			),
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('admin','delete','index'),
				'users'=>array('admin'),
			),
			array('deny',  // deny all users
				'users'=>array('*'),
			),
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
		$this->render('view',array(
			'model'=>$this->loadModel($id),
		));
	}

	// function gan truoc gia tri cho sua doi thong tin
	public function Create()
	{
		$model=new UserProfiles;
		$model->id = $model->user_id = Yii::app()->user->id;	// gan id cua userprofiles = user_id = id cua nguoi dung dang nhap
		$model->display_name = Yii::app()->user->name;			// gan display name = username cua nguoi dung dang nhap
		//$model->save();
		return $model;											
		/*// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['UserProfiles']))
		{
			$model->attributes=$_POST['UserProfiles'];
			if($model->save())
				$this->redirect(array('view','id'=>$model->id));
		}

		$this->render('create',array(
			'model'=>$model,
		));*/
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	 
	public function actionUpdate($id)
	{
		$model=$this->loadModel($id);
			// Uncomment the following line if AJAX validation is needed
			// $this->performAjaxValidation($model);

			if(isset($_POST['UserProfiles']))
			{	
				$model->attributes=$_POST['UserProfiles'];
				if($model->save())
					$this->redirect(array('view','id'=>$model->id));
			}
		
		
		$this->render('update',array(
			'model'=>$model,
		));
	
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		if(Yii::app()->request->isPostRequest)
		{
			// we only allow deletion via POST request
			$this->loadModel($id)->delete();

			// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
			if(!isset($_GET['ajax']))
				$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
		}
		else
			throw new CHttpException(400,'Invalid request. Please do not repeat this request again.');
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
		$dataProvider=new CActiveDataProvider('UserProfiles');
		$this->render('index',array(
			'dataProvider'=>$dataProvider,
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new UserProfiles('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['UserProfiles']))
			$model->attributes=$_GET['UserProfiles'];

		$this->render('admin',array(
			'model'=>$model,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer the ID of the model to be loaded
	 */
	public function loadModel($id)
	{
		/*if ($this->user_profiles===null)
		{
			$modelU = Yii::app()->user->id;
			if ($modelU !== null)
			{
				$this->user_profiles = UserProfiles::model()->findByPk($modelU);
				if ($this->user_profiles===null)
				 throw new CHttpException (404,'khong tim thay!');
			}
		}
		return $this->user_profiles;*/
		$model=UserProfiles::model()->findbyPk($id);
		if ($model === null)                        	//khi khong tim thay id trong userprofiles
			return $this->Create();						// tra ve $model trong function Create(), co the coi nhu la da tim thay trong database rui  tiep tuc dc chuyen vao actionUpdate()		
		else											
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param CModel the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='user-profiles-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
	// function thay doi avtar.
	// gan giong actionUpdate
	public function actionAvatar ($id)
	{
		$model = $this->loadModel($id);

			if (isset($_POST['UserProfiles']))
			{
				$model->attributes = $_POST['UserProfiles'];
				$model->avatar = CUploadedFile::getInstance($model,'avatar'); // gan ten cua anh? vao $model->avatar de luu vao database
				if ($model->save())												// luu vao database.
				{
					$name = $model->avatar;										// gan ten anh? o trong database vao $name.
					$path = YiiBase::getPathOfAlias ('webroot').'/data/';		// duong dan toi thu muc chua anh?
					$model->avatar->saveAs ($path.$name);						// con day la luu anh vao thu muc data.
				}
			}
			
		$this->render ('avatar',array('model'=>$model));
	}
}
